Amerisleep AS3 Hybrid vs Signature Hybrid (Medium)
They're priced closely — the real difference is feel: the Signature Hybrid (Medium) is the firmer of the two. Every number below comes from published teardowns and spec sheets (see our methodology); prices are queen-size, refreshed 2026-10-23.
Amerisleep AS3 Hybrid vs Signature Hybrid (Medium): full spec table
| Spec | Amerisleep AS3 Hybrid | Signature Hybrid (Medium) |
|---|---|---|
| Type | Hybrid | Hybrid |
| Firmness | 5/10 | 6/10 |
| Height | 12" | 14.5" |
| Queen price | $1,449 | $1,465 |
| Price range (all sizes) | $999–$1,449 | $959–$1,865 |
| Foam densities (lb/ft³, top → bottom) | 4.0 / 1.5 | 1.6 / 2.3 / 2.3 / 1.8 / 1.5 |
| Coil gauge | — | 13 |
| Coil count (queen) | — | — |
| Cooling | 6/10 | 6/10 |
| Motion isolation | 6/10 | 6/10 |
| Edge support | 7/10 | 8/10 |
| Pressure relief | 7/10 | 8/10 |
| Support | 8/10 | 9/10 |
| Natural materials | 3/10 | 4/10 |
| Notable features | Balanced medium feel for couples, Bio-Pur breathable memory foam comfort layer, 8" pocketed coil support core, Reinforced edge support | TitanFlex responsive foam, Ascension pocketed coil system, Multiple firmness options, Cooling cover |
| Spec source | NapLab | NapLab |
Key differences
- The Signature Hybrid (Medium) is a step firmer (6/10 vs 5/10), so it suits sleepers who want a bit more pushback.
Who the Amerisleep AS3 Hybrid is for
The Amerisleep AS3 Hybrid has a medium feel that works for many side and back sleepers, and for combination sleepers who switch positions.
- Strong, even support that keeps the spine aligned
Who the Signature Hybrid (Medium) is for
The Signature Hybrid (Medium) has a medium feel that works for many side and back sleepers, and for combination sleepers who switch positions.
- Excellent pressure relief at the shoulders and hips
- Strong, even support that keeps the spine aligned
- Sturdy edges that make the full surface usable
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Frequently asked questions
Which is firmer, the Amerisleep AS3 Hybrid or the Signature Hybrid (Medium)?
The Signature Hybrid (Medium) is firmer at 6/10 versus 5/10 for the Amerisleep AS3 Hybrid.
Which is cheaper, the Amerisleep AS3 Hybrid or the Signature Hybrid (Medium)?
The Amerisleep AS3 Hybrid is cheaper in a queen: $1,449 versus $1,465, as of 2026-10-23.
What is the main construction difference between the Amerisleep AS3 Hybrid and the Signature Hybrid (Medium)?
Both are hybrid builds with similar published specs — the differences come down to feel and price rather than construction. The full layer-by-layer comparison is in the table above.
See how both stack up against every bed we track in the full comparison matrix, or dig into the complete specs for the Amerisleep AS3 Hybrid and the Signature Hybrid (Medium).